Chiefs RB Jamaal Charles Has Foot Strain

Garrett W. Ellwood/Getty Images(ST. JOSEPH, Mo.) -- Just one day after being carted off the field during practice with a foot injury, two orthopedic surgeons agreed that Kansas City Chiefs Pro Bowl running back Jamaal Charles has a mild foot strain.

"His ankle ligaments were fine," Chiefs trainer Rick Burkholder said. "He had some pain on the outside bone of his foot. We did an X-ray. That was negative. There's a tendon that attaches right at that spot and that's what is sore right now. That's why we call it a strain."

It is not known how long Charles will be out of practice, but it does not look like he will play in Friday night's preseason game against the San Francisco 49ers.

Charles rushed 285 times for 1509 yards and five touchdowns last season for the Chiefs, and is expected to lead the team's rushing attack this year.